JP2002137939A - Method of fabricating display panel and fabricating device therefor - Google Patents
Method of fabricating display panel and fabricating device thereforInfo
- Publication number
- JP2002137939A JP2002137939A JP2000330219A JP2000330219A JP2002137939A JP 2002137939 A JP2002137939 A JP 2002137939A JP 2000330219 A JP2000330219 A JP 2000330219A JP 2000330219 A JP2000330219 A JP 2000330219A JP 2002137939 A JP2002137939 A JP 2002137939A
- Authority
- JP
- Japan
- Prior art keywords
- display panel
- sealing member
- manufacturing
- heating means
- optical heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Joining Of Glass To Other Materials (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、表示パネルの製造
方法及びその製造装置に関する。The present invention relates to a method for manufacturing a display panel and an apparatus for manufacturing the same.
【０００２】[0002]
【従来の技術】従来から、表示パネルとしてＣＲＴ、プ
ラズマディスプレイパネル（以下、ＰＤＰという）、電
界放出型ディスプレイ（以下、ＦＥＤという）あるいは
蛍光表示管等が知られている。たとえばＰＤＰは図６に
示すように表示電極１、誘電体層２、保護層３を形成し
た第一基板４と、データ電極５、誘電体層６、隔壁７、
蛍光体１１を形成した第二基板８を対向配置して、その
周囲を封着部材９にて気密封止して、排気管１２を取付
けて外囲器１０を作成する。次に排気管１２を通じて外
囲器１０内を真空に排気した後、放電ガスを５００Ｔｏ
ｒｒ（６６．５ｋＰａ）程度導入し、排気管１２を封じ
て表示パネルを完成する。2. Description of the Related Art Conventionally, a CRT, a plasma display panel (hereinafter, referred to as PDP), a field emission display (hereinafter, referred to as FED), a fluorescent display tube and the like are known as display panels. For example, as shown in FIG. 6, a PDP includes a first substrate 4 on which a display electrode 1, a dielectric layer 2, and a protective layer 3 are formed, a data electrode 5, a dielectric layer 6, a partition 7,
The second substrate 8 on which the phosphors 11 are formed is arranged to face each other, the periphery thereof is hermetically sealed with a sealing member 9, and an exhaust pipe 12 is attached to form an envelope 10. Next, after the inside of the envelope 10 is evacuated to a vacuum through the exhaust pipe 12, the discharge gas is
About rr (66.5 kPa) is introduced, and the exhaust pipe 12 is sealed to complete the display panel.
【０００３】ここで封着工程は、第二基板８の周辺に封
着部材９を塗布し、封着部材９を乾燥後、第一基板４と
対向配置してクリップ等で固定し、電気炉等の加熱手段
によって加熱しながら封着部材９を溶融し、２枚の基板
を気密封止するものである。これら封着工程は、他の表
示パネルについてもほぼ同様である。Here, in the sealing step, a sealing member 9 is applied to the periphery of the second substrate 8, and after the sealing member 9 is dried, the sealing member 9 is opposed to the first substrate 4 and fixed with a clip or the like. The sealing member 9 is melted while being heated by a heating means such as the above, and the two substrates are hermetically sealed. These sealing steps are substantially the same for other display panels.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
表示パネルの製造方法においては、封着をする際に電気
炉等を用い、２枚の基板間に封着部材を介在させた状態
で加熱する。そのために本来溶融加熱すべき封着部材以
外に、２枚の基板も同時に加熱するために、余分なエネ
ルギーを必要とする課題があった。また、いったん加熱
した２枚の基板を冷却する際には、急激に冷却すると基
板が割れることから、ゆっくり冷却する必要があり、多
くの時間を有する課題があった。However, in the conventional method of manufacturing a display panel, an electric furnace or the like is used for sealing and heating is performed with a sealing member interposed between two substrates. . Therefore, there is a problem that extra energy is required to simultaneously heat the two substrates in addition to the sealing member that should be melt-heated. In addition, when two heated substrates are cooled, if the substrate is rapidly cooled, the substrate will be broken.
【０００５】一方、封着工程において封着部材近傍を局
所加熱することにより上記課題を解決する方法として特
開２０００−１３８０３０や特開２０００−１４９７８
３が開示されているが、パネル内に加熱手段を形成した
り、別途補助的な加熱手段を要したりするためコスト上
昇をまねく課題が新たに生じていた。On the other hand, as a method for solving the above-mentioned problem by locally heating the vicinity of a sealing member in a sealing step, JP-A-2000-138030 and JP-A-2000-14978 are known.
However, since a heating means is formed in the panel or a separate auxiliary heating means is required, a new problem has arisen that leads to an increase in cost.
【０００６】本発明は、これらの不都合に鑑みて創案さ
れたものであり、封着工程において容易な方法でしかも
歩留りを向上できる表示パネルの製造方法とその製造装
置を提供することを目的とする。The present invention has been made in view of these disadvantages, and has as its object to provide a method and an apparatus for manufacturing a display panel capable of improving the yield by an easy method in a sealing step. .
【０００７】[0007]
【課題を解決するための手段】本発明に係る表示パネル
の製造方法は、光学的加熱手段を用い、照射パワーに分
布を持たせながら、前記ガラス部材表面に所定の温度分
布を生じさせて封着部材を溶融することを特徴とする。
これにより封着部材を局所加熱するとともに、その近傍
の温度勾配を緩やかにして基板がわれないようにするこ
とができる。According to a method of manufacturing a display panel according to the present invention, a predetermined temperature distribution is generated on the surface of the glass member while providing a distribution of irradiation power by using an optical heating means. It is characterized in that the attachment member is melted.
Thus, the sealing member can be locally heated, and the temperature gradient in the vicinity can be made gentle to prevent the substrate from being broken.
【０００８】本発明に係る別の表示パネルの製造方法
は、封着部材近傍に光学的加熱手段をスキャンしながら
照射し、単位時間当たりのスキャン回数を封着部材形成
部の方をその近傍よりも多くして封着部材を溶融するこ
とを特徴とする。これにより、単位時間当たりのスキャ
ン回数が多いところは温度が高く、少ないところは温度
を低くでき容易に加熱温度分布を設けることができる。In another method for manufacturing a display panel according to the present invention, the optical heating means scans and irradiates the vicinity of the sealing member, and the number of scans per unit time is increased by changing the number of scans per unit time from the vicinity. It is characterized in that the sealing member is melted in most cases. Accordingly, the temperature is high where the number of scans per unit time is large, and the temperature is low where the number of scans per unit time is small, so that the heating temperature distribution can be easily provided.
【０００９】本発明に係る別の表示パネルの製造方法
は、光学的加熱手段を用い、前記光学的加熱手段はガラ
ス部材表面で加熱パワーの分布を有し、封着部材形成部
の加熱パワーをその周辺の加熱パワーより大きくして封
着部材を溶融することを特徴とする。これにより封着部
材形成部付近を高温にし、その近傍を徐々に低温化する
ことができ、基板にダメージを与えず、容易に局所加熱
ができる。Another method of manufacturing a display panel according to the present invention uses optical heating means, wherein the optical heating means has a distribution of heating power on the surface of the glass member, and reduces the heating power of the sealing member forming portion. It is characterized in that the sealing member is melted by making it larger than the heating power in the vicinity thereof. This makes it possible to raise the temperature in the vicinity of the sealing member forming portion and gradually lower the temperature in the vicinity thereof, thereby easily performing local heating without damaging the substrate.
【００１０】本発明に係る別の表示パネルの製造方法
は、複数の光学的加熱手段を用い、封着部材形成部の加
熱パワーをその周辺の加熱パワーより大きくして封着部
材を溶融することを特徴とする。これにより封着部材形
成部付近を高温にし、その近傍の温度をコントロールで
き適宜低温化することができるため、基板にダメージを
与えず、容易に局所加熱ができる。Another method of manufacturing a display panel according to the present invention is to melt the sealing member by using a plurality of optical heating means so that the heating power of the sealing member forming portion is larger than the heating power of its surroundings. It is characterized by. Thus, the temperature in the vicinity of the sealing member forming portion can be increased, and the temperature in the vicinity can be controlled and the temperature can be appropriately lowered, so that local heating can be easily performed without damaging the substrate.
【００１１】本発明に係る表示パネルの製造装置は、複
数の光学的加熱手段を１つのユニットにし、ユニットの
中のおのおのの光学的加熱手段の配置あるいはパワーを
最適化し、所定の温度分布をパネル表面に実現できる製
造装置である。これにより、容易に所定の温度分布をパ
ネル表面上に再現できる。In the display panel manufacturing apparatus according to the present invention, the plurality of optical heating means are integrated into one unit, the arrangement or power of each optical heating means in the unit is optimized, and a predetermined temperature distribution is adjusted to the panel. This is a manufacturing device that can be realized on the surface. Thereby, a predetermined temperature distribution can be easily reproduced on the panel surface.
【００１２】[0012]
【発明の実施の形態】本発明に係る実施の形態を図面に
基づいて説明する。An embodiment according to the present invention will be described with reference to the drawings.
【００１３】図１は本実施の形態に係る表示パネルの製
造方法を示す概略図、図２は本実施の形態に係る別の表
示パネルの製造方法を簡略化して示す斜視図、図３、４
および図５は本実施の形態に係る表示パネルの製造装置
を簡略化して示す断面図である。FIG. 1 is a schematic view showing a method for manufacturing a display panel according to the embodiment, FIG. 2 is a perspective view schematically showing another method for manufacturing a display panel according to the embodiment, and FIGS.
5 and FIG. 5 are simplified cross-sectional views showing a display panel manufacturing apparatus according to the present embodiment.
【００１４】図１において１３は光学的加熱手段であ
り、図１（ａ）は封着する表示パネルと光学的加熱手段
を示し、図１（ｂ）は光学的加熱手段から表示パネルに
熱線である光が照射される際に表示パネル近傍における
照度の分布を模式的に示しており、図１（ｃ）は照度に
分布を持たして光学的加熱手段１３で表示パネルを加熱
した際の表示パネルの温度分布を示している。In FIG. 1, reference numeral 13 denotes optical heating means, FIG. 1A shows a display panel to be sealed and optical heating means, and FIG. 1B shows a heating wire from the optical heating means to the display panel. FIG. 1C schematically shows the distribution of the illuminance in the vicinity of the display panel when a certain light is irradiated. FIG. 3 shows the temperature distribution of the panel.
【００１５】封着部材９としてフリットを用いる場合
は、封着部材９の形成部付近をフリットの溶融温度以上
に加熱する必要がある。温度はおよそ４５０℃である。
また基板としてガラスを用いることが多く、ソーダライ
ムガラスやあるいは歪点がソーダライムガラスより高く
設計されたガラス（例えばＰＤ２００ 旭硝子社製）を
使用する。我々は、これらガラス材料に対して１ｃｍあ
たりに約２０℃の温度差を生じさせると基板に割れが生
じやすいことを経験的につかんでいる。したがって光学
的加熱手段１３にてその照射パワーを制御しながら、表
示パネル表面で封着部材９の近傍を最高４５０℃まで加
熱し、その近傍の温度を１ｃｍあたり２０℃を超えない
ようにする。封着部材９の形成部近傍で１ｃｍあたり２
０℃以上の温度差をつけないようにするのは、昇温工程
においても、降温工程においても同様に実施する。When a frit is used as the sealing member 9, it is necessary to heat the vicinity of the formation portion of the sealing member 9 to a temperature higher than the melting temperature of the frit. The temperature is around 450 ° C.
Glass is often used as the substrate, and soda lime glass or glass (for example, PD200 manufactured by Asahi Glass Co., Ltd.) having a strain point higher than that of soda lime glass is used. We have empirically found that creating a temperature difference of about 20 ° C./cm for these glass materials tends to cause cracks in the substrate. Therefore, while controlling the irradiation power with the optical heating means 13, the vicinity of the sealing member 9 on the display panel surface is heated up to 450 ° C. so that the temperature in the vicinity does not exceed 20 ° C./cm. 2 per cm in the vicinity of the formation portion of the sealing member 9
Preventing a temperature difference of 0 ° C. or more is similarly performed in the temperature raising step and the temperature lowering step.
【００１６】照射パワーの制御の方法は次のようなもの
がある。There are the following methods for controlling the irradiation power.
【００１７】図２において１３は光学的加熱手段、１４
は光線をスキャンする手段としてポリゴンミラーを用い
ている。光学的加熱手段１３は、レーザーでもよく、ラ
ンプでも良い。レーザーはＹＡＧレーザーでも、炭酸ガ
スレーザーでも、半導体レーザーでも加熱できれば良
い。これら光学的加熱手段１３をポリゴンミラー１４に
照射しポリゴンミラー１４を回転させると、所定の幅を
スキャンさせることができる。このときポリゴンミラー
１４の軸に多少の角度を振れるようにするか、もしくは
光学的加熱手段１３の角度を多少振れるようにすると、
光学的加熱手段１３が点、もしくは非常に狭いエリアを
照射する際にも、表示パネルを面状に加熱することがで
きる。このとき単位時間あたりにスキャンする回数を制
御すると、回数が多いほうが高温に、また回数を順次減
らすことによって、加熱温度に分布を生じさせることが
できる。また、光学的加熱手段１３の出力パワーを制御
して高温にする必要がある部分をスキャンするときにパ
ワーを上げ、徐々にパワーを下げることによって加熱温
度に分布を生じさせることができる。図２では説明上、
１辺のみを光学的加熱手段１３により加熱しているが４
辺同時に加熱することが望ましい。その際、光学的加熱
手段１３とポリゴンミラー１４を一つずつ用い表示パネ
ル全面をスキャンしてもよいし、各辺に１組づつの合計
４組の光学的加熱手段１３とポリゴンミラー１４を用い
ても良い。In FIG. 2, reference numeral 13 denotes an optical heating means;
Uses a polygon mirror as a means for scanning light rays. The optical heating means 13 may be a laser or a lamp. The laser may be any one of a YAG laser, a carbon dioxide laser, and a semiconductor laser as long as it can be heated. By irradiating the polygon mirror 14 with the optical heating means 13 and rotating the polygon mirror 14, a predetermined width can be scanned. At this time, if the angle of the axis of the polygon mirror 14 can be slightly shifted or the angle of the optical heating means 13 can be slightly shifted,
Even when the optical heating means 13 irradiates a point or a very small area, the display panel can be heated in a planar manner. At this time, if the number of scans per unit time is controlled, the higher the number is, the higher the temperature is. The number of scans is sequentially reduced, so that the heating temperature can be distributed. Further, by controlling the output power of the optical heating means 13 to increase the power when scanning a portion that needs to be heated to a high temperature, and gradually decreasing the power, a distribution can be generated in the heating temperature. In FIG.
Only one side is heated by the optical heating means 13, but 4
It is desirable to heat the sides simultaneously. At this time, the entire display panel may be scanned by using one optical heating means 13 and one polygon mirror 14, or four optical heating means 13 and one polygon mirror 14 may be used for each side. May be.
【００１８】また、図３に示すようにハロゲンランプユ
ニット１５を用いることもできる。Further, as shown in FIG. 3, a halogen lamp unit 15 can be used.
【００１９】ハロゲンランプユニット１５はハロゲンラ
ンプ１６と反射ミラー１７からなり、ハロゲンランプ１
６から放出された熱線をミラー１７で特定の部位に集光
することもできるし分散させることもできる。これによ
り、一つのランプによって、表示パネル上に所定の温度
分布を設けることができる。The halogen lamp unit 15 comprises a halogen lamp 16 and a reflection mirror 17, and the halogen lamp 1
The heat rays emitted from 6 can be focused on a specific portion by the mirror 17 or can be dispersed. Thus, a predetermined temperature distribution can be provided on the display panel by one lamp.
【００２０】さらには、図４、図５に示すように、複数
のハロゲンランプ１６を用いて表示パネル上に温度分布
を作ることもできる。Further, as shown in FIGS. 4 and 5, a plurality of halogen lamps 16 can be used to create a temperature distribution on the display panel.
【００２１】図４においてはランプに配置に疎な部分と
密な部分を設けて表示パネル上に温度分布を作る。In FIG. 4, a sparse part and a dense part are provided in the lamp to create a temperature distribution on the display panel.
【００２２】また図５においては出力パワーの異なるラ
ンプを設け表示パネル上に温度分布を作る例を示した。FIG. 5 shows an example in which lamps having different output powers are provided and a temperature distribution is formed on a display panel.
【００２３】このように、光学的加熱手段を用いて、表
示パネル上の照射パワーに分布をもたせ、その結果表示
パネルの加熱温度に分布を設けることができ、封着部材
形成部近傍をその溶融温度まで加熱し、それ以外の部分
は基板に割れ等のダメージが生じないように温度分布を
形成して封着工程を実施することができる。As described above, the distribution of the irradiation power on the display panel can be given by using the optical heating means, so that the distribution of the heating temperature of the display panel can be provided. The sealing process can be performed by heating to a temperature and forming a temperature distribution in other portions so as not to cause damage such as cracks on the substrate.
【００２４】[0024]
【発明の効果】以上説明したように、本発明に係る表示
パネルの製造方法および製造装置は、光学的加熱手段を
用いて、基板表面に加熱パワーの分布を生じるようにす
ることで、基板表面に温度分布を形成することができ、
基板にダメージを生じない局所加熱を実現することがで
きる。これにより、封着工程において基板全体を封着温
度に加熱する必要がなく、加熱時のエネルギーを低減で
きるとともに、装置のコストや表示パネルの部材増加に
よるコストを上昇をすることもない。As described above, the method and apparatus for manufacturing a display panel according to the present invention use the optical heating means to generate a distribution of heating power on the surface of the substrate. Temperature distribution can be formed,
Local heating without causing damage to the substrate can be realized. Thus, it is not necessary to heat the entire substrate to the sealing temperature in the sealing step, so that energy during heating can be reduced, and the cost of the apparatus and the cost due to an increase in the number of display panel members do not increase.
【図１】本実施の形態に係る表示パネルの製造方法を示
す概略図FIG. 1 is a schematic view showing a method for manufacturing a display panel according to an embodiment.
【図２】本実施の形態に係る別の表示パネルの製造方法
を簡略化して示す斜視図FIG. 2 is a simplified perspective view showing a method of manufacturing another display panel according to the embodiment.
【図３】本実施の形態に係る表示パネルの製造装置を簡
略化して示す断面図FIG. 3 is a simplified cross-sectional view illustrating a display panel manufacturing apparatus according to the present embodiment.
【図４】本実施の形態に係る表示パネルの製造装置を簡
略化して示す断面図FIG. 4 is a simplified cross-sectional view showing a display panel manufacturing apparatus according to the present embodiment.
【図５】本実施の形態に係る表示パネルの製造装置を簡
略化して示す断面図FIG. 5 is a simplified cross-sectional view showing a display panel manufacturing apparatus according to the present embodiment.
【図６】従来の形態に係る表示パネルを簡略化して示す
部分断面図FIG. 6 is a partial cross-sectional view schematically showing a display panel according to a conventional mode.
１３ 光学的加熱手段 １４ ポリゴンミラー １５ ハロゲンランプユニット 13 Optical heating means 14 Polygon mirror 15 Halogen lamp unit
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4G061 AA13 AA25 BA03 BA12 CA02 CB07 CB12 CC03 CD02 CD24 CD25 DA24 DA35 5C012 BC03 5C040 FA01 HA01 MA23 MA26 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4G061 AA13 AA25 BA03 BA12 CA02 CB07 CB12 CC03 CD02 CD24 CD25 DA24 DA35 5C012 BC03 5C040 FA01 HA01 MA23 MA26
Claims (6)
て封止する表示パネルの製造方法において、光学的加熱
手段を用い、照射パワーに分布を持たせながら前記ガラ
ス部材表面に所定の温度分布を生じさせて封着部材を溶
融することを特徴とする表示パネルの製造方法。1. A method for manufacturing a display panel in which terminal portions of a plurality of glass members are sealed with a sealing member, wherein a predetermined surface is applied to the surface of the glass member while giving a distribution of irradiation power using an optical heating means. A method for manufacturing a display panel, wherein a temperature distribution is generated to melt a sealing member.
て封止する表示パネルの製造方法において、封着部材近
傍に光学的加熱手段をスキャンしながら照射し、単位時
間当たりのスキャン回数を封着部材形成部の方がその近
傍よりも多くして封着部材を溶融することを特徴とする
表示パネルの製造方法。2. A method of manufacturing a display panel in which terminal portions of a plurality of glass members are sealed with a sealing member, wherein the vicinity of the sealing member is irradiated with an optical heating means while scanning, and the number of scans per unit time is set. Wherein the number of the sealing member forming portions is larger than that of the vicinity thereof and the sealing member is melted.
て封止する表示パネルの製造方法において、光学的加熱
手段を用い、前記光学的加熱手段はガラス部材表面で加
熱パワーの分布を有し、封着部材形成部の加熱パワーを
その周辺の加熱パワーより大きくして封着部材を溶融す
ることを特徴とする表示パネルの製造方法。3. A method of manufacturing a display panel in which terminal portions of a plurality of glass members are sealed with a sealing member, wherein an optical heating means is used, and the optical heating means controls a distribution of heating power on a surface of the glass member. A method for manufacturing a display panel, comprising: heating a sealing member forming portion at a higher heating power than surrounding heating power to melt the sealing member.
て封止する表示パネルの製造方法において、複数の光学
的加熱手段を用い、封着部材形成部の加熱パワーをその
周辺の加熱パワーより大きくして封着部材を溶融するこ
とを特徴とする表示パネルの製造方法。4. A method of manufacturing a display panel in which terminal portions of a plurality of glass members are sealed with a sealing member, wherein a plurality of optical heating means are used, and a heating power of the sealing member forming portion is heated around the periphery. A method for manufacturing a display panel, wherein the sealing member is melted with a power larger than the power.
て封止する表示パネルの製造方法において、複数の異な
るパワーの光学的加熱手段を用い、封着部材形成部に強
い加熱パワーの光学的加熱手段を用いその周辺に弱い加
熱パワーの光学的加熱手段を用いて温度分布をつくるこ
とを特徴とする表示パネルの製造装置。5. A method of manufacturing a display panel in which terminal portions of a plurality of glass members are sealed with a sealing member, wherein a plurality of optical heating means having different powers is used, and a strong heating power is applied to the sealing member forming portion. An apparatus for manufacturing a display panel, wherein a temperature distribution is formed by using an optical heating means and using an optical heating means having a weak heating power around the optical heating means.
て封止する表示パネルの製造方法において、複数の光学
的加熱手段を用い、封着部材形成部近傍により多くの光
学的加熱手段を配置して温度分布をつくることを特徴と
する表示パネルの製造装置。6. A method of manufacturing a display panel in which terminal portions of a plurality of glass members are sealed with a sealing member, wherein a plurality of optical heating units are used, and more optical heating units are provided near the sealing member forming portion. A display panel manufacturing apparatus characterized in that a temperature distribution is created by disposing a panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000330219A JP2002137939A (en) | 2000-10-30 | 2000-10-30 | Method of fabricating display panel and fabricating device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000330219A JP2002137939A (en) | 2000-10-30 | 2000-10-30 | Method of fabricating display panel and fabricating device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002137939A true JP2002137939A (en) | 2002-05-14 |
Family
ID=18806779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000330219A Pending JP2002137939A (en) | 2000-10-30 | 2000-10-30 | Method of fabricating display panel and fabricating device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002137939A (en) |
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